Can you use Tamron macro lens for SLR on Nikon D3100?

I have the Tamron 572DN AF 70-300mm Macro lens and would like to get some more information if you can safely use it with Nikon D3100 DSLR.It looks like it doesn't auto focus and the image appears a little foggy when I take the picture on auto settings. Maybe you have an advice on the settings I should use? I just started my photo adventure and would like to gather some more information about my equipment.
>>> Can you use Tamron macro lens for SLR on Nikon D3100?

Retrieving Pictures.?

So my Nikon D3100 camera was stolen yesterday. Of course, I was always too lazy to upload the 700+ pictures to my computer. I don't want to accept the fact that all my pictures are gone. I did view the pictures from my SD card (I just didn't save them) and I was wondering if there was a way to retrieve these pictures without the card? It's a long shot but if anyone has any information that may help me it would make me a little less depressed about the situation.
>>> Retrieving Pictures.?

Good camera for short filmmaking?

I'm looking for a camera with very good picture quality for shooting short films, sketches etc. I've been looking around on 'Which?' and other websites and though some seem very good, I wanted another opinion on here.As for the one's I've looked at, I've read up on the Nikon D7000 and Canon EOS 7D, which both seem like good quality and cameras and the kind of thing I'm looking for.My price range is from about £800 to no more than £1, 600 approximately, The main thing I want from this camera is high resolution and good picture quality. Also, very important that it's good for filming, as one of the issues with the Canon 7D seemed to be that filming used up a hell of a lot of memory, and it seemed to be more suited for shooting individual pictures. Anyway, let me know what your thoughts are, I'm very open to suggestions.
>>> Good camera for short filmmaking?

Buying DSLR camera on eBay?

Is it worth buying DSLR camera on eBay? I'm just can't quite afford full retail price.
http://stores.ebay.com.au/QD-Shopping-Centre/Nikon-/_i.html?_fsub=3206096011&_sid=138021041&_trksid=p4634.c0.m322
>>> Buying DSLR camera on eBay?

What SD card should I use for my new T3 Canon?

I just bought a Canon T3 and a new SD card that had a crack in it, I found an old card that I used in a point and shoot Nikon, I keep getting the reinsert/change card or format it with the camera. When I tried to format it I got an error message. Should I go buy a new SD card?
>>> What SD card should I use for my new T3 Canon?

What Camera do I get? Help!

I am a fifteen year old girl and I am interested in photography and looking to do it as an A level next year, as well as this i'll be doing the standard things including holiday shots/photos with friends/prom pictures etc.My budget is about £400 pounds and im after a portable interchanging lens camera with the following qualities:
-optival veiwfinder
-flipout screen
-relatively small
-HD filming
-quick shutter speed
-a number of shooting modes (including panorama)
-good low light shots

The nikon 5100 looks almost perfect but is too expensive
the nikon 3100 is less expensive however doesnt have a flip out screen
the sony nex 5n looks great as its small but i dont know whether the size impacts image quality and it doesnt have an optical veiwfinder.it is also slightly over budget
the lumix g3 is perfect in size/looks but it doesnt have panorama
and the sony a37 doesnt have a flip out screen and reviews i have read have been mixed!

HELP, is there a camera out there that does everything i want for under £400?
>>> What Camera do I get? Help!

What are nikon's strength and weakness?

I've been trying to search up information about nikon for a project. However I'm not able to find any information.could someone help me please!
>>> What are nikon's strength and weakness?

Beginner portrait photographer needs advice on lens for Nikon d3000?

Hello! I'm really getting into portrait photography (mostly just natural light photos of my kiddos). I'd like to take my portraits to the next level, but I'm not sure what kind of lens to get for my nikon d3000. I currently own the one that it came with, but the aperture will only go as low as f5.6 and from what I've heard a way to get better photos is a lens that can go even lower. What would you suggest? Thanks a million!
>>> Beginner portrait photographer needs advice on lens for Nikon d3000?

I am going to purchase a DSLR for the first time.need maintenance information?

I am going to buy a nikon's DSLR for the first time and i don't have any idea of its prevention from dust and fungus etc.so much money i am putting in it and now i am scared? please help.
>>> I am going to purchase a DSLR for the first time.need maintenance information?

Good camera strap for Nikon D3100?

I would like to invest in a solid camera strap for my Nikon D3100 that will be long enough to strap across my chest. (To avoid worrying about pickpockets when shooting in large cities.) The stock strap that came with the camera just isn't doing the job for me. Any suggestions would be greatly appreciated.
>>> Good camera strap for Nikon D3100?

What is f- means in digital camera?

I have Nikon n90, Many times when I want to take picture, the camera does not allow me to do anything and it show: f--
What should I do? what is wrong?
>>> What is f- means in digital camera?

What do I need to do to capture the same purple in the photograph from a purple object?

In most of the settings I use, the purple comes out as blue in varying tones and sometimes with a tinge of purple, maybe pale purple as well. What can I do to overcome this problem and the camera settings I use?
I use a Nikon D500 camera.
>>> What do I need to do to capture the same purple in the photograph from a purple object?

Dslr around rs.30, 000.which is betr-nikon 3100, d3200, d5100?

I'm planning to buy a dslr around rs.30k.which is betr-nikon 3100, d3200, d5100? or is der a better option? i'm a beginr, n i wont b replacin d camera in d near future.so d requirements are to fit in 30, 000(33k max), n model shudnt b much old, shudnt b much sophisticatd eithr.
>>> Dslr around rs.30, 000.which is betr-nikon 3100, d3200, d5100?

Can a Wide 21X Zoom nikon camera with a 14.4 megapix have different lenses?

I'd like to get into photography and it looks like I can change the lenses, but can I really?
>>> Can a Wide 21X Zoom nikon camera with a 14.4 megapix have different lenses?

Best Settings for Low-Light Concert Photogrpahy?

I have a Nikon D5000, 18-200 VR 3.5 lens
no flash (other than than one that comes on the camera)

Can someone PLEASE give me a rundown of all my settings I need to get the best quality pictures, I want to go to the concert with some pre-settings… I know I will have to adjust when I am there, but I would love to have a good foundation before I show up.
>>> Best Settings for Low-Light Concert Photogrpahy?